The Enzyme Database

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EC 2.4.3.5     
Accepted name: galactosyldiacylglycerol α-2,3-sialyltransferase
Reaction: CMP-N-acetyl-β-neuraminate + 1,2-diacyl-3-β-D-galactosyl-sn-glycerol = CMP + 1,2-diacyl-3-[3-(N-acetyl-α-D-neuraminyl)-β-D-galactosyl]-sn-glycerol
Systematic name: CMP-N-acetyl-β-neuraminate:1,2-diacyl-3-β-D-galactosyl-sn-glycerol N-acetylneuraminyltransferase
Comments: The β-D-galactosyl residue of the oligosaccharide of glycoproteins may also act as acceptor.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 80237-98-5
References:
1.  Pieringer, J., Keech, S. and Pieringer, R.A. Biosynthesis in vitro of sialosylgalactosyldiacylglycerol by mouse brain microsomes. J. Biol. Chem. 256 (1981) 12306–12309. [PMID: 7298658]
2.  Weinstein, J., de Souza-e-Silva, U. and Paulson, J.C. Purification of a Gal β1→4GlcNAc α2→6 sialyltransferase and a Gal β1→3(4)GlcNAc α2→3 sialyltransferase to homogeneity from rat liver. J. Biol. Chem. 257 (1982) 13835–13844. [PMID: 7142179]
3.  Weinstein, J., de Souza-e-Silva, U. and Paulson, J.C. Sialylation of glycoprotein oligosaccharides N-linked to asparagine. Enzymatic characterization of a Gal β1→3(4)GlcNAc α2→3 sialyltransferase and a Gal β1→4GlcNAc α2→6 sialyltransferase from rat liver. J. Biol. Chem. 257 (1982) 13845–13853. [PMID: 7142180]
[EC 2.4.3.5 created 1984 as EC 2.4.99.5, modified 1986, transferred 2022 to EC 2.4.3.5]
 
 


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